Yu Ding

most citedA remark on degenerate singularity in three dimensional Ricci flow

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math.DG2011

A restriction for singularities on collapsing orbifolds

Yu Ding

An orbifold $X$ is locally homeomorphic to $G_{x} \ B_{r} (0)$ , where $G_{x}$ is a finite group acting on $B_{r} (0) \subset R^{n}$ , so that $G_{x} (0) = 0$ . For collapsing orbifold…

math.DG2007★ 1 cited

A remark on degenerate singularity in three dimensional Ricci flow

Yu Ding

We show that a rescale limit at any degenerate singularity of Ricci flow in dimension 3 is a steady gradient soliton. In particular, we give a geometric description of type I and t…